US6665508B2 - Toner container and image forming apparatus using the same - Google Patents

Toner container and image forming apparatus using the same Download PDF

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Publication number
US6665508B2
US6665508B2 US10/059,187 US5918702A US6665508B2 US 6665508 B2 US6665508 B2 US 6665508B2 US 5918702 A US5918702 A US 5918702A US 6665508 B2 US6665508 B2 US 6665508B2
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US
United States
Prior art keywords
toner
opening
toner container
closing
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US10/059,187
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English (en)
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US20020114646A1 (en
Inventor
Kazuhisa Sudo
Yoshio Hattori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2001035481A external-priority patent/JP3926569B2/ja
Priority claimed from JP2001400638A external-priority patent/JP4048051B2/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Assigned to RICOH COMPANY, LTD. reassignment RICOH COMPANY, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HATTORI, YOSHIO, SUDO, KAZUHISA
Publication of US20020114646A1 publication Critical patent/US20020114646A1/en
Priority to US10/678,091 priority Critical patent/US6813460B2/en
Application granted granted Critical
Publication of US6665508B2 publication Critical patent/US6665508B2/en
Priority to US10/757,439 priority patent/US7110704B2/en
Priority to US10/757,444 priority patent/US7162188B2/en
Priority to US10/956,101 priority patent/US7130567B2/en
Priority to US10/957,698 priority patent/US7209687B2/en
Priority to US11/208,739 priority patent/US7158742B2/en
Priority to US11/695,847 priority patent/US7412191B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • G03G15/0881—Sealing of developer cartridges
    • G03G15/0886—Sealing of developer cartridges by mechanical means, e.g. shutter, plug
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G03G15/0874—Arrangements for supplying new developer non-rigid containers, e.g. foldable cartridges, bags
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • G03G15/0879—Arrangements for metering and dispensing developer from a developer cartridge into the development unit for dispensing developer from a developer cartridge not directly attached to the development unit
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0682—Bag-type non-rigid container
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0692—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material using a slidable sealing member, e.g. shutter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S222/00—Dispensing
    • Y10S222/01—Xerography

Definitions

  • the present invention relates to a copier, printer, facsimile apparatus or similar electrophotographic image forming apparatus and more particularly to a toner container to be removably mounted to an image forming apparatus for replenishing toner to a developing device.
  • a toner container easy to mount and dismount without causing toner to scatter has been proposed in various forms in the past. For example, a toner container whose cap is automatically opened when the container is moved and is therefore easy to use is available. However, this kind of toner container has sophisticated, expensive structure.
  • the toner container has its toner outlet automatically opened when simply inserted into the setting portion of the apparatus from the above or has it automatically closed when simply pulled out of the setting portion.
  • a nozzle extends upward from the setting portion.
  • the toner container includes a self-closing valve that opens when the nozzle is inserted into the toner container.
  • the self-closing valve is implemented as a sponge seal formed of compressed foam sponge non-permeable to air and formed with a cruciform slit. The sponge seal elastically deforms when the nozzle is inserted into the slit of the seal or closes the slit when the nozzle is removed from the slit, thereby preventing toner from leaking.
  • the problem with the sponge seal is that the elastic restoring force is apt to decrease due to, e.g., creep when the seal hardens in a low-temperature environment or due to aging.
  • the sponge seal reduced in restoring force often causes the toner to leak when the toner is pulled out of the setting portion.
  • the toner outlet is positioned at the bottom of the toner container. Therefore, when the closing movement of the sponge seal is delayed at the time of mounting or dismounting of the toner container, the toner scatters around the setting portion due to its own weight.
  • the nozzle is apt to tear off or shave off the sponge seal at the time of mounting and dismounting. The resulting pieces of the sponge seal would degrade image quality if introduced in the developing device.
  • a toner container of the present invention stores powdery toner to be replenished via a toner outlet thereof and includes a container body.
  • a shutter device is positioned in the toner outlet for selectively opening or closing the toner outlet.
  • the shutter device includes an opening/closing member, a resilient member constantly biasing the opening/closing member from the inside toward the outside of the container body, and a support member supporting the resilient member and opening/closing member.
  • FIG. 1 is a view showing an image forming apparatus using a toner container embodying the present invention
  • FIG. 2 is a section showing a toner replenishing device included in the image forming apparatus
  • FIG. 3 is an enlarged section showing a container holder or setting portion included in the toner replenishing device
  • FIG. 4 is an exploded isometric view showing shutter means included in the illustrative embodiment
  • FIG. 5 is a section showing the toner container removed from the container holder
  • FIG. 6 is an enlarged section showing the shutter means
  • FIG. 7 is a section showing how the toner container is removed from the container holder
  • FIG. 8 is an external isometric view of the toner container with the shutter means, as seen from obliquely below;
  • FIG. 9 is a section showing a toner container apt to cause toner to stay therein;
  • FIG. 10 is an external isometric view of a toner container with a bent member adhered thereto;
  • FIGS. 11A and 11B are respectively a front view and a plan view showing the bent member
  • FIG. 12 is an external isometric view showing a modification of the illustrative embodiment
  • FIG. 13 is an external isometric view showing another modification of the illustrative embodiment.
  • FIG. 14 is an external isometric view showing a specific arrangement of four toner containers in the container holder.
  • an image forming apparatus embodying the present invention is shown and implemented as a color laser printer by way of example.
  • the printer includes a printer body 1 .
  • a sheet feeding section and an image forming section 3 are respectively arranged in the upper portion and lower portion of the printer body 1 .
  • the image forming section 3 includes an image transfer belt device generally inclined downward toward the sheet feeding section 2 .
  • the image transfer belt device includes a plurality of (four in the illustrative embodiment) rollers 11 and an endless, image transfer belt 12 passed over the rollers 11 .
  • a drive source, not shown, is drivably connected to one of the rollers 11 for driving the belt 12 counterclockwise, as indicated by an arrow in FIG. 1 .
  • a magenta (M), a cyan (c), a yellow (Y) and a black (Bk) image forming unit 4 M, 4 C, 4 Y and 4 Bk, respectively, are sequentially arranged in this order, as named from the bottom to the top.
  • the image forming units 3 M through 4 Bk are arranged side by side above the upper run of the image transfer belt (simply belt hereinafter) 12 .
  • the image forming units 4 M through 4 Bk each include a photoconductive drum or image carrier 5 rotatable clockwise, as viewed in FIG. 1, by being driven by drive means not shown.
  • the drum 1 Arranged around the drum 1 are a charge roller or charging means 6 , an optical writing unit 8 , a developing device or developing means 10 , and a cleaning device or cleaning means 9 .
  • the developing device 10 stores a toner and carrier mixture or two-ingredient type developer.
  • a toner replenishing device which will be described later, replenishes fresh toner to the developing device 10 , as needed.
  • the charge roller 6 uniformly charges the surface of the drum 5 .
  • a laser diode not shown, is driven in accordance with M image data to emit a laser beam toward a polygonal mirror 8 a.
  • the laser beam steered by the polygonal mirror 8 a is incident to the charged surface of the drum 5 via, e.g., a cylindrical lens and scans the surface of the drum 5 , thereby writing a latent image.
  • the developing device 10 develops the latent image with magenta toner to thereby form a magenta toner image.
  • the above image data may be input from personal computer or similar host machine to the printer.
  • a sheet or recording medium is fed from the sheet feeding section 2 to a registration roller pair 13 , which is positioned upstream of the belt 12 in the direction of sheet conveyance.
  • the registration roller pair 13 once stops the sheet and then conveys it to the belt 12 in synchronism with the rotation of the drum 5 .
  • the belt 12 conveys the sheet to an image transfer position where the belt 12 faces the drum 5 .
  • An image transfer roller 14 which contacts the inner surface of the belt 12 , transfers the magenta toner image from the drum 5 to the sheet.
  • the other image forming units 4 C, 4 Y and 4 Bk form respective toner images on their drums 5 in the same manner as the image forming unit 4 M.
  • Such toner images are sequentially transferred to the belt 12 one above the other.
  • the printer therefore forms a full-color image on the sheet as rapidly as a monochromatic printer, which forms a monochromatic image. This is an advantage particular to a tandem image forming apparatus.
  • the sheet with the full-color image is separated from the belt 12 and then conveyed to a fixing device 15 .
  • the fixing device 15 fixes the full-color image formed on the sheet.
  • the sheet or print coming out of the fixing device 15 is directly driven out of the printer body 1 or is reversed and then driven out to a print tray 16 face down, which is mounted on the top of the printer body 1 .
  • Today, the function of discharging prints face down is essential with a printer for stacking sheets in order of page.
  • the illustrative embodiment monitors the toner content of the developer stored in the developing device 10 and replenishes fresh toner when the toner content decreases.
  • a toner container or toner storing means 20 is located at a position remote from the developing device 10 , i.e., in the top right portion of the printer body l in the illustrative embodiment.
  • a toner replenishing device replenishes fresh toner from the toner container 20 to the developing device 10 .
  • FIG. 2 shows a specific configuration of the toner replenishing device.
  • a suction type powder pump 40 adjoins or is constructed integrally with the developing device 10 and plays the role of sucking means.
  • the powder pump 40 which is a single axis, eccentric screw pump, is generally made up of a screw-like rotor 41 , a stator 42 , and a holder 43 .
  • the rotor 41 is implemented as an eccentric screw formed of metal or similar rigid material.
  • the stator 42 is formed of rubber or similar elastic material.
  • the holder 43 is formed of, e.g., resin and holds the stator 52 in such a manner as to prevent it from rotating.
  • the holder 43 forms a powder conveyance passage.
  • the rotor 41 is connected to a drive shaft 41 a by pin joint that absorbs the eccentric movement of the rotor 41 .
  • a gear 45 is affixed to the drive shaft 45 and selectively driven via a clutch 45 .
  • the holder 43 has a toner inlet at its right end, as viewed in FIG. 2.
  • a nozzle 51 which will be described specifically later, includes a connection port 54 .
  • a tube 17 provides fluid communication between the toner inlet of the holder 43 and the connection port 54 of the nozzle 51 .
  • the tube 17 should preferably be formed of, polyurethane rubber, nitrile rubber, silicone rubber or similar rubber highly resistant to toner. Such a flexible tube 17 can be easily arranged in any desired direction.
  • the toner container 20 is removably positioned on a container holder or setting portion 50 .
  • the nozzle 51 having a circular cross-section extends from the container holder 50 upward.
  • the nozzle 51 penetrates into the toner container 20 .
  • the upper portion of the nozzle 51 terminates at a conical or spherical tip 52 formed integrally with or affixed to the nozzle 51 .
  • the nozzle 51 has a tubular structure having a single wall and forming an air/toner passage 53 .
  • An air inlet port 55 is formed in the nozzle 51 above the connection port 54 .
  • a pipe 47 connects an air pump or air feeding means 46 to the air inlet port 55 of the nozzle 51 .
  • the air pump 46 implements a flow rate of about 1 litter to 3 litters for a minute.
  • the air pump 46 in operation sends air into the toner container 20 via the pipe 47 and air/toner passage 53 .
  • Air sent into the toner container 20 dashes through the toner layer present in the toner container 20 , fluidizing the toner by agitating it. As a result, the toner whose fluidity is originally low becomes as fluid as liquid.
  • a check value may be positioned in the pipe 47 for preventing the toner from entering the air pump 46 .
  • the toner container 20 has a bag-in-box structure made up of a box or protection case 21 and a deformable, hermetic toner bag or container body 22 received in the box 21 .
  • the box 21 is formed of paper, corrugated paper, resin or similar rigid material, and has a space great enough to accommodate the toner bag 22 .
  • the toner bag 22 has its major part implemented by a polyester sheet, polyethylene film, or similar flexible sheet in the form of a single layer or a plurality of layers.
  • the flexible sheet is about 80 ⁇ m to 200 ⁇ m thick and folded in the same manner as in the art of paper folding.
  • the major part the toner bag 22 is tapered from a suitable intermediate portion thereof toward a toner outlet downward, so that the toner can be easily discharged.
  • a mouth member 23 is fitted in the toner outlet positioned at the bottom center of the tapered toner bag 22 .
  • the mouth member 23 is formed of polyethylene resin, nylon resin or similar resin.
  • the mouth member 23 includes a first or larger diameter portion 24 to which the toner bag 22 is adhered or welded, a second or smaller diameter portion 25 to which shutter means 30 , which will be described later, is adhered or otherwise affixed, and a flat third portion 26 removably connecting the toner bag 22 to the box 21 .
  • the third portion 26 is positioned between the first portion 24 and the second portion 25 .
  • a through hole 27 extends throughout the mouth member 23 . As shown in FIG. 6, The through hole 27 has a two-step structure that is larger in diameter at the second portion 24 side than at the first portion 25 side.
  • the shutter means 30 includes a support member 31 formed with a two-step through hole like the mouth member 23 and adhered or otherwise affixed to the mouth member 23 .
  • a piston member or opening/closing member 32 is movable in the through hole of the support member 31 .
  • the piston 32 is made up of a piston 32 a and a piston rod 32 b formed integrally with the piston 32 a.
  • a stop claw 33 is formed at the end of the piston rod 32 b remote from the piston 32 a.
  • Beam members 28 extend upward from a smaller diameter portion 31 which is included in the support member 31 and forms part of the two-step through hole.
  • a ring portion 29 connects the beam members 28 to each other. The stop claw 33 and ring portion 29 are engaged with each other, constituting stop means.
  • a compression coil spring or resilient member 34 surrounds, but is spaced from, the piston rod 32 .
  • the coil spring 34 is seated on the piston member 32 and ring portion 29 at opposite ends thereof, constantly biasing the piston member 32 downward. More specifically, the coil spring 34 constantly biases the piston member 32 downward against the nozzle 51 , as viewed in FIG. 3 .
  • a seal member 35 is fitted in a larger diameter portion 31 a, which formed the other part of the two-step hole of the support member 31 .
  • the seal member 35 is formed of foam sponge, rubber or similar elastic material and formed with a through hole 36 at its center.
  • FIG. 3 shows the piston member 32 in an opening position where it opens the toner outlet by being pushed upward by the nozzle 51 against the action of the coil spring 34 .
  • FIG. 5 shows the piston member 32 in a closing position where it closes the toner outlet. In the closing position, the circumference of the piston 32 a is held in slidable contact with the seal member 35 .
  • the piston 32 a and the hole 36 of the seal member 35 have diameters of D 1 and D 2 , respectively.
  • the diameter D 1 is selected to be greater than the diameter D 2 . This allows the piston 32 a to contact the seal member 35 over its entire circumference in the closing position of the piston member 32 .
  • the nozzle 51 is provided with the same diameter and shape D 1 as the piston 32 a.
  • the inside diameter of the smaller diameter portion 31 b of the support member 31 and the circumference of the piston 32 a are spaced by a gap s.
  • the gap s is selected to be 0.2 mm or above in order to prevent the above portion 31 b from obstructing the movement of the piston member 32 .
  • the shutter means 30 biased by the coil spring 34 surely closes the toner outlet of the toner container 20 when the toner container 20 is removed from the nozzle 51 without regard to low temperature or similar environmental condition.
  • the hole 36 of the seal member 35 prevents the seal member 35 from being partly torn off despite that the seal member 35 is formed of, e.g., sponge.
  • the piston 32 a remains in the bottom portion of the toner container 20 in the closing position, it slides deep into the container 20 away from the closing position when the nozzle 51 is fully inserted into the container 20 . In this manner, in the illustrative embodiment, the distance between the closing position and the opening position of the piston member 32 is great enough to prevent the piston member 32 from obstructing the discharge of the toner when held in the opening position.
  • the piston 32 a of the piston member 32 a has a bottom 32 c facing the tip 52 of the nozzle 51 .
  • the bottom 32 c and tip 52 are so configured as to closely contact each other without any gap.
  • the bottom 32 c and tip 52 both may be implemented at flat faces.
  • the tip 52 is implemented as a spherical, convex surface while the bottom 32 c is implemented as a concave surface complementary to the convex surface, i.e., identical in diameter as the convex surface. This allows the bottom 32 c and tip 52 to surely align with each other even when the nozzle 51 being inserted into the toner container 20 is slightly shifted from the piston member 32 .
  • the piston member 32 and nozzle 51 aligning with and closely contacting each other prevent the toner from leaking via the toner outlet when the toner container 20 is pulled away from the nozzle 51 . More specifically, as shown in FIG. 7, when the toner container 20 is pulled away from the nozzle 51 , the nozzle 51 contacting the seal member 35 together with the piston member 32 moves away from the piston member 32 . At this instant, if the piston member 32 and nozzle 51 are not axially aligned, then a gap temporarily appears between the piston member 32 and the seal member 35 and causes the toner to leak. Moreover, the bottom 32 c of the piston member 32 and the tip 52 of the nozzle 51 closely contacting each other prevent the toner from dropping toward the toner outlet.
  • the mouth member 23 and support member 31 are adhered together to constitute a single member.
  • the smaller diameter portion 24 of the mouth member 23 and the smaller diameter portion 31 b of the support member 31 both extend upward at the center.
  • the smaller diameter portion 31 b is positioned inside the smaller diameter portion 24 , forming a double-wall structure.
  • the toner bag 22 is adhered, welded or otherwise affixed to the smaller diameter portion 24 .
  • the mouth member 23 and support member 31 may be implemented by a single member.
  • the single member would make it difficult to fill the toner container 20 with the toner via the toner outlet because the shutter means 30 would be fitted on the mouth member 23 beforehand.
  • the illustrative embodiment fills the toner container 20 with the toner before adhering the support member 31 to the mouth member 23 and then affixes the support member 31 supporting the shutter means 30 .
  • the toner can therefore be smoothly introduced into the toner container 20 without being blocked by the shutter means 30 .
  • the box 21 accommodating the toner bag 22 protects it from shocks and impacts.
  • the box 21 is easy to handle and store.
  • the shutter means 30 reduces the area of the toner outlet of the toner bag 22 and is apt to cause the toner to remain in the toner bag 22 .
  • the illustrative embodiment further includes a bent member 60 that prevents the toner from staying in the toner bag 22 .
  • the bent member 60 is formed of, e.g., Mylar (trade name) or similar elastic plastics.
  • the bent member 60 is an elongate thin member more rigid than the toner bag 22 and bent at the center to form a peak 61 .
  • Two bent members 60 (only one is visible) are adhered to opposite side walls greater in area than the other side walls such that their peaks 61 protrude away from each other.
  • the bent members 60 should preferably be positioned in the vicinity of or slightly above the ring portion 29 of the shutter means 30 .
  • bent members 60 would be halved if they were positioned at an extremely high level or on the tapered portion. As shown in FIGS. 11A and 11B, the corners of each bent member 60 are rounded so as not to damage the toner bag 22 .
  • the bent members 60 adhered to the toner bag 22 maintain the toner bag 22 in an outwardly expanded shape. Therefore, as shown in FIG. 3, the portion of the toner bag 22 that guides the toner toward the nozzle 51 in the vicinity of the shutter means 30 has a sufficient open area, preventing the toner from staying there. In addition, the bent members 60 prevent the toner bag 22 from bending in the vicinity of the shutter means 30 and thereby prevent the toner from bridging.
  • bent members 60 may be more rigid than the toner bag 22 , as stated above, they should preferably be elastic so as to be easily adhered to the toner bag 22 .
  • FIG. 12 shows a modification of the toner container 20 .
  • the toner bag 22 itself is formed with folds 62 in place of the bent members 60 .
  • the folds 62 are positioned at substantially the same level as the peaks 61 of the bent members 60 slightly above the shutter means 30 .
  • the toner container 20 with the folds 62 can prevent the toner from staying in the portion that guides the toner to the nozzle 51 without resorting to the bent members 60 .
  • FIG. 13 shows another modification of the toner container 20 .
  • two magnets 63 (only one is visible) are adhered to opposite side walls of the toner bag 22 slightly above the shutter means 30 .
  • Metal pieces or magnetic pieces 64 are adhered to opposite side walls of the box 21 corresponding to the side walls of the toner bag 22 .
  • the magnets 63 magnetically adhere to the metal pieces 64 , broadening the portion of the toner bag 22 that guides the toner. This is also successful to prevent the toner from staying in the above portion of the toner bag 22 .
  • the magnets 63 and magnetic pieces 64 may be respectively fitted on the box 21 and toner bag 22 , if desired. Also, the magnetic pieces 64 may also be implemented as magnets that attract the magnets 63 .
  • the rotor 41 in rotation generates high suction pressure in the powder pump 40 , so that the toner is sucked out of the toner container 20 . More specifically, the toner drops to the vicinity of the nozzle 51 due to gravity and is conveyed to the outside of the toner container by the suction of the powder pump 40 .
  • the toner for the electrophotographic process has low fluidity and is therefore apt to bridge around the nozzle inside the toner container 20 after being sucked by the powder pump 40 .
  • the illustrative embodiment sends compressed air from the air pump 30 to the inside of the toner container 20 for thereby agitating and fluidizing the toner. Compressed air sent into the toner container 20 loosens even the bridged toner and thereby insures stable toner replenishment while reducing the toner to remain in the toner container 20 .
  • the full-color image forming apparatus described above uses four toner containers 20 storing magenta toner, cyan toner, yellow toner and black toner, respectively. As shown in FIG. 14, such four toner containers 20 may advantageously be arranged side by side in the container holder 50 . Of course, the toner containers 20 may adjoin each other in a square configuration. In any case, the toner containers 20 should preferably adjoin each other with some rule with their tops being flush with each other. This arrangement, however, makes it difficult for the operator to grip the individual toner container 20 when, e.g., it runs out of toner. While the space between nearby toner containers 20 may be increased to allow the operator to grip one of them without touching the other toner containers 20 , such a space is not practical because of a limited space available in the container holder 50 .
  • the illustrative embodiment additionally includes thrusting means 70 for pushing up the toner container 20 set in the container holder 50 .
  • the thrusting means 70 includes a movable support frame 71 having a generally U-shaped section and formed with a flange 72 at its top edge.
  • a spring or biasing member 73 constantly biases the support frame 71 upward.
  • a seal 74 is received in the support frame 71 and formed of sponge or similar elastic material.
  • the seal 74 is adhered or otherwise affixed to the support frame 71 and formed with a slit at its center. The slit allows the nozzle 51 to penetrate into the seal 74 .
  • the spring 73 is a coil spring loaded between the wall of the container holder 50 and the support frame 71 and forces the flange 72 of the support frame 71 upward.
  • the spring 73 maintains the support frame 71 at the uppermost position shown in FIG. 3 .
  • the length and biasing force of the spring 73 are so selected as to prevent the support frame 71 held at the uppermost position from slipping out of the nozzle 51 .
  • a stop 75 retains the toner container 20 correctly set in the container holder 50 .
  • the stop 75 is formed integrally with the container holder 50 .
  • the container holder 50 is formed of plastics or sheet metal, so that the stop 75 has adequate resiliency.
  • the stop 75 retains the top of the box 21 of the toner container 20 , as illustrated.
  • the box 21 is formed with a recess 21 a that mates with the stop 75 .
  • the toner container 20 When the toner container 20 is correctly set in the container holder 50 , it compresses the spring 73 while the stop 75 resiliently mates with the recess 21 a of the box 21 . The toner container 20 is therefore locked in the container holder 50 . To pick up the toner container 20 , the operator releases the stop 75 from the recess 21 a. Then, the spring 73 thrusts the toner container 20 upward, as shown in FIG. 5 . Therefore, even when four toner containers 20 are arranged side by side with a minimum of space therebetween, as shown in FIG. 14, the toner container 20 to be picked up is raised above the other toner containers 20 and can be easily picked up.
  • the toner container 20 is, in many cases, picked out of the apparatus for the purpose of replacement. It follows that the biasing force of the spring 73 should only be strong enough to push up the empty toner container 20 . Further, the coil spring 34 of the shutter means 30 constantly biases the toner container 20 upward like the spring 73 . Assume that frictional resistance F acts on the seal valve 24 when the toner container 20 is pulled out of the nozzle 51 , and that the empty toner container 20 has a weight of M. Then, the sum of the force of the spring 73 and that of the coil spring 34 should only be greater than the sum of F and M. Further, the biasing force of the spring 73 should only be smaller than the sum of F and the weight N of the full toner container 20 .
  • the present invention provides a toner container and an image forming apparatus using the same that have various unprecedented advantages, as enumerated below.
  • Shutter means surely closes the toner outlet of the toner container without regard to low temperature or similar environmental condition, thereby preventing toner from leaking.
  • the shutter means is simple, easy to assemble and reliable in operation.
  • An opening/closing member included in a shutter member does not adjoin the end of the container body in an opening position.
  • the opening/closing member therefore does not interfere with the discharge of the toner, so that the toner can be smoothly replenished.
  • the opening/closing member is usually closed to surely prevent the toner from leaking.
  • a support member has a through hole made up of a larger diameter portion and a smaller diameter portion.
  • a seal member is adhered to the wall of the larger diameter portion and can therefore be easily fitted on the support member.
  • the seal member is elastic and formed with a through hole through which the opening/closing member can pass. The seal member is therefore preventing from tearing off when a nozzle is inserted, insuring stable toner replenishment.
  • a gap of 0.2 mm or above exists between the outside diameter of the opening/closing member and the smaller diameter portion of the through hole. The gap insures smooth movement of the opening/closing member and smooth insertion of the nozzle.
  • a compression spring or resilient member is wound round a piston rod between the piston portion and the ring portion of the opening/closing member.
  • the spring is therefore easy to mount and exerts a biasing force in a preselected direction, promoting the stable closing movement of the shutter means.
  • the piston and the nozzle have the same size as seen in a section, preventing the toner from leaking when the nozzle is inserted or pulled out.
  • the nozzle has a convex tip and allows the piston to be easily aligned with the nozzle.
  • the resilient member of the shutter means helps thrusting means push up the toner container when the toner container is to be removed. In addition, the thrusting means surely pushes up the toner container.
  • Bent members can be easily fitted on a toner bag forming part of the toner container.
  • the bent members surely prevent the toner from staying in the toner bag without damaging the toner bag. This is also true when the toner bag itself is processed instead of using the bent members.
  • the toner container is easy to set on the image forming apparatus and causes a minimum of toner to leak.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
US10/059,187 2001-01-31 2002-01-31 Toner container and image forming apparatus using the same Expired - Lifetime US6665508B2 (en)

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US10/678,091 US6813460B2 (en) 2001-01-31 2003-10-06 Toner container and image forming apparatus using the same
US10/757,444 US7162188B2 (en) 2001-01-31 2004-01-15 Toner container and image forming apparatus using the same
US10/757,439 US7110704B2 (en) 2001-01-31 2004-01-15 Toner container and image forming apparatus using the same
US10/956,101 US7130567B2 (en) 2001-01-31 2004-10-04 Toner container and image forming apparatus using the same
US10/957,698 US7209687B2 (en) 2001-01-31 2004-10-05 Toner container and image forming apparatus using the same
US11/208,739 US7158742B2 (en) 2001-01-31 2005-08-23 Toner container and image forming apparatus using the same
US11/695,847 US7412191B2 (en) 2001-01-31 2007-04-03 Toner container and image forming apparatus using the same

Applications Claiming Priority (9)

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JP2001-023597(JP) 2001-01-31
JP2001-023597 2001-01-31
JP2001023597 2001-01-31
JP2001035481A JP3926569B2 (ja) 2001-02-13 2001-02-13 トナー収納容器および画像形成装置
JP2001-035481 2001-02-13
JP2001-035481(JP) 2001-02-13
JP2001400638A JP4048051B2 (ja) 2001-01-31 2001-12-28 剤収納容器及び画像形成装置
JP2001-400638(JP) 2001-12-28
JP2001-400638 2001-12-28

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US10/678,091 Expired - Lifetime US6813460B2 (en) 2001-01-31 2003-10-06 Toner container and image forming apparatus using the same
US10/757,439 Expired - Lifetime US7110704B2 (en) 2001-01-31 2004-01-15 Toner container and image forming apparatus using the same
US10/757,444 Expired - Lifetime US7162188B2 (en) 2001-01-31 2004-01-15 Toner container and image forming apparatus using the same
US10/956,101 Expired - Lifetime US7130567B2 (en) 2001-01-31 2004-10-04 Toner container and image forming apparatus using the same
US10/957,698 Expired - Lifetime US7209687B2 (en) 2001-01-31 2004-10-05 Toner container and image forming apparatus using the same
US11/208,739 Expired - Lifetime US7158742B2 (en) 2001-01-31 2005-08-23 Toner container and image forming apparatus using the same
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US10/757,439 Expired - Lifetime US7110704B2 (en) 2001-01-31 2004-01-15 Toner container and image forming apparatus using the same
US10/757,444 Expired - Lifetime US7162188B2 (en) 2001-01-31 2004-01-15 Toner container and image forming apparatus using the same
US10/956,101 Expired - Lifetime US7130567B2 (en) 2001-01-31 2004-10-04 Toner container and image forming apparatus using the same
US10/957,698 Expired - Lifetime US7209687B2 (en) 2001-01-31 2004-10-05 Toner container and image forming apparatus using the same
US11/208,739 Expired - Lifetime US7158742B2 (en) 2001-01-31 2005-08-23 Toner container and image forming apparatus using the same
US11/695,847 Expired - Lifetime US7412191B2 (en) 2001-01-31 2007-04-03 Toner container and image forming apparatus using the same

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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040091287A1 (en) * 2000-09-28 2004-05-13 Junichi Matsumoto Toner supply unit and image forming apparatus
US20040114971A1 (en) * 2002-09-20 2004-06-17 Kiyotaka Sakai Developer regulating member, developing device, electrophotographic image forming process cartridge, and image forming apparatus including the developer regulating member
US20040165913A1 (en) * 2002-12-13 2004-08-26 Yoshio Hattori Toner agitating device and toner conveying device for an image forming apparatus
US20040223556A1 (en) * 2003-05-06 2004-11-11 Samsung Electronics Co., Ltd. Method and apparatus for transferring and receiving ultra wideband signals using differential phase shift keying scheme
US20050111882A1 (en) * 2003-09-19 2005-05-26 Kazuhisa Sudo Image forming apparatus
US20050196199A1 (en) * 2004-03-05 2005-09-08 Yoshio Hattori Toner container, toner replenishing device, developing device, process cartridge and image forming apparatus
US20050249518A1 (en) * 2004-05-06 2005-11-10 General Plastic Industrial Co., Ltd. Toner cartridge
US20060029435A1 (en) * 2004-08-06 2006-02-09 Tadashi Kasai Image forming apparatus
US7110704B2 (en) 2001-01-31 2006-09-19 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US20070077100A1 (en) * 2004-02-06 2007-04-05 Masato Suzuki Toner bottle, process for producing the same, toner container, and toner cartridge, and, image forming apparatus and image forming process
US7218880B2 (en) 2000-02-17 2007-05-15 Ricoh Company, Ltd. Apparatus and method for replenishing a developing device with toner while suppressing toner remaining
US20070147900A1 (en) * 2005-06-07 2007-06-28 Nobuyuki Taguchi Toner container and image forming apparatus
US20070160394A1 (en) * 2005-04-27 2007-07-12 Nobuyuki Taguchi Toner container and image forming apparatus
US20070170211A1 (en) * 2003-09-04 2007-07-26 Yoshio Hattori Container and toner replenishing device using the same
US20070177905A1 (en) * 2003-02-28 2007-08-02 Hiroshi Hosokawa Developer container, developer supplying device, and image forming apparatus
US20070212116A1 (en) * 2006-03-10 2007-09-13 Fumihito Itoh Image forming device, powder supply device, and powder storage unit
US20070212119A1 (en) * 2004-08-06 2007-09-13 Ricoh Company, Ltd. Toner Cartridge, Image Forming Apparatus, Method of Recycling Toner Cartridge
US20070212117A1 (en) * 2006-03-10 2007-09-13 Fumihito Itoh Powder transport device and image forming system
US20070242983A1 (en) * 2006-04-18 2007-10-18 Hiroshi Sano Powder supplying device and image forming device
US20080063435A1 (en) * 2003-08-25 2008-03-13 Nobuo Takami Conveyor device and image forming apparatus
US20080102392A1 (en) * 2006-10-26 2008-05-01 Nobuyuki Koinuma Information recording medium and method of preparing same
US20080124133A1 (en) * 2006-11-09 2008-05-29 Hideo Yoshizawa Toner container and image forming apparatus
US20080143098A1 (en) * 2006-11-07 2008-06-19 Joerg Zimmermann Magnetic fluid coupling assemblies and methods
US20080152407A1 (en) * 2006-12-25 2008-06-26 Kazuhisa Sudo Image forming apparatus capable of forming glossy color image
US7398038B2 (en) 2002-09-24 2008-07-08 Ricoh Company, Ltd. Image forming apparatus using a toner container and a process cartridge
US20080193161A1 (en) * 2006-02-14 2008-08-14 Hiroshi Sano Power Supplying Device and Image Forming Device
US20080213003A1 (en) * 2007-01-25 2008-09-04 Hiroshi Sano Particle supply apparatus, imaging apparatus, and particle accommodating unit transporting method
US20080310884A1 (en) * 2002-09-20 2008-12-18 Junichi Matsumoto Body member of a powder container
US20090080945A1 (en) * 2001-10-30 2009-03-26 Satoshi Muramatsu Developer container for an image forming apparatus
US20090136257A1 (en) * 2007-11-26 2009-05-28 Yoshio Hattori Development device, process cartridge, and image forming apparatus
US20090324298A1 (en) * 2002-09-20 2009-12-31 Goro Katsuyama Image forming apparatus, powder supplying unit, toner container, powder container, and method of recycling the powder container
US7720416B2 (en) 2004-08-16 2010-05-18 Ricoh Company, Ltd. Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatus
US8346105B2 (en) 2010-06-11 2013-01-01 Ricoh Company, Limited Information storage device, removable device, developer container, and image forming apparatus
US8886095B2 (en) 2011-02-17 2014-11-11 Ricoh Company, Ltd. Powder container, powder supply device and image-forming apparatus
US9201345B2 (en) 2011-03-08 2015-12-01 Ricoh Company, Ltd. Image-forming apparatus, toner container and toner container installation structure
US9857729B2 (en) * 2013-02-25 2018-01-02 Ricoh Company, Ltd. Nozzle insertion member, powder container, and image forming apparatus

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3849971B2 (ja) * 2000-03-16 2006-11-22 株式会社リコー 劣化状態確認可能な製品
ES2295182T3 (es) * 2000-07-18 2008-04-16 Coloplast A/S Un aposito.
US7542703B2 (en) * 2002-05-20 2009-06-02 Ricoh Company, Ltd. Developing device replenishing a toner or a carrier of a two-ingredient type developer and image forming apparatus including the developing device
US7116928B2 (en) * 2002-12-18 2006-10-03 Ricoh Company, Ltd. Powder discharging device and image forming apparatus using the same
KR100523346B1 (ko) * 2003-02-17 2005-10-24 가부시키가이샤 리코 화상 형성 장치
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EP1589384B1 (de) 2004-04-23 2020-01-08 Ricoh Company, Ltd. Entwicklerbehälter
JP2006039424A (ja) * 2004-07-29 2006-02-09 Ricoh Co Ltd 画像形成装置及びこれに用いるトナー並びに該トナーを収納したトナー容器
KR100605251B1 (ko) * 2004-08-14 2006-07-28 삼성전자주식회사 현상제 카트리지 및 이를 포함하는 습식 전자사진방식화상형성장치
USD540375S1 (en) * 2004-08-16 2007-04-10 Ricoh Company, Ltd. Toner cartridge
USD541847S1 (en) * 2004-08-16 2007-05-01 Ricoh Company, Ltd. Toner cartridge
CN100454166C (zh) * 2004-11-09 2009-01-21 株式会社理光 色调剂容器，色调剂补给装置及图像形成装置
US7184691B2 (en) * 2004-11-09 2007-02-27 Ricoh Company, Ltd. Toner container, toner supply device and image forming apparatus
KR100633142B1 (ko) * 2005-06-29 2006-10-11 삼성전자주식회사 현상제 충전장치 및 그것을 구비한 현상제 충전시스템
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JP2007163742A (ja) * 2005-12-13 2007-06-28 Fuji Xerox Co Ltd 画像形成装置
US20090041574A1 (en) * 2005-12-23 2009-02-12 Gol Pak Uni-axial screw pump
JP4455525B2 (ja) * 2006-03-20 2010-04-21 シャープ株式会社 トナー補給装置、トナー供給装置および画像形成装置
KR100873449B1 (ko) * 2006-07-20 2008-12-11 삼성전자주식회사 토너탱크, 슬라이드 셔터, 실링부재, 탄성부재, 및 이를 구비한 토너공급장치
JP4990040B2 (ja) * 2006-11-01 2012-08-01 株式会社リコー 現像剤補給装置、画像形成装置
US7654413B2 (en) * 2007-04-17 2010-02-02 Kuei-Tang Chang Supporting device for package water dispenser
WO2008153972A2 (en) * 2007-06-08 2008-12-18 Cabot Corporation Carbon blacks, toners, and composites and methods of making same
US8474655B2 (en) * 2008-05-12 2013-07-02 Hewlett-Packard Development Company, L.P. Bag-in-box container including a pre-positioned, secured dispensing spout
EP2280828B1 (de) * 2008-05-20 2012-10-10 Hewlett-Packard Development Company, L.P. Tintenbehälterträger
US9850118B2 (en) * 2010-08-20 2017-12-26 Pepsico, Inc. Bag-in-box pump system
MX337912B (es) 2010-12-03 2016-03-28 Ricoh Co Ltd Recipiente de polvo, dispositivo de suministro de polvo y aparato de formación de imágenes.
JP5982759B2 (ja) * 2011-09-06 2016-08-31 ブラザー工業株式会社 粉体充填装置
AU2016277648B2 (en) * 2011-11-25 2019-02-07 Ricoh Company, Limited Powder Container And Image Forming Apparatus
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AU2015204365B2 (en) * 2011-11-25 2016-09-22 Ricoh Company Limited Powder Container And Image Forming Apparatus
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US9405221B2 (en) * 2012-06-08 2016-08-02 Ricoh Company, Ltd. Powder container and image forming apparatus incorporating same
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Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0720702A (ja) 1993-06-30 1995-01-24 Ricoh Co Ltd トナー補給装置
US5592267A (en) 1994-01-19 1997-01-07 Ricoh Company, Ltd. Image forming apparatus using fresh toner and used toner
US5652944A (en) * 1994-07-29 1997-07-29 Fujitsu Limited Serial electrophotographic apparatus with first and second supply chamber with stirring arrangements
JPH09197818A (ja) 1996-01-11 1997-07-31 Xerox Corp トナーカートリッジ
US5655180A (en) * 1994-03-19 1997-08-05 Kao Corporation Toner cartridge with a rotary element which is attachable to and detachable from a developing apparatus
US5960238A (en) * 1997-04-25 1999-09-28 Nec Corporation Method of supplying toner for process cartridge and process cartridge for image forming apparatus
US6032010A (en) * 1998-02-27 2000-02-29 Samsung Electronics Co., Ltd. Ink supply apparatus for wet electrophotographic printer
US6122468A (en) 1998-10-09 2000-09-19 Ricoh Company, Ltd. Method and apparatus for forming toner images
JP2000267415A (ja) 1999-03-15 2000-09-29 Ricoh Co Ltd トナー収納容器
US6163669A (en) 1998-05-29 2000-12-19 Ricoh Company, Ltd. Image forming apparatus
US6198895B1 (en) 1999-02-08 2001-03-06 Ricoh Company, Ltd. Developing device with improved developer circulation and toner density control
US6201941B1 (en) 1998-06-25 2001-03-13 Ricoh Company, Ltd. Developer container for an image forming apparatus and method of conveying a developer
US6249304B1 (en) 1996-10-08 2001-06-19 Ricoh Company, Ltd. Image forming apparatus and image forming method for forming color images by gray-level image forming technique
US6295437B1 (en) 1998-12-28 2001-09-25 Ricoh Company, Ltd. Apparatus and method for forming an image using a developing device capable of obtaining a high quality image
EP1154333A2 (de) 2000-05-08 2001-11-14 Ricoh Company, Ltd. Bilderzeugungsgerät mit leicht auswechselbarem Tonerbehälter und eine Tonerzuführpumpe
US6337957B1 (en) 1999-06-21 2002-01-08 Ricoh Company, Ltd. Image forming apparatus and developing device with improved self toner density control
US6393241B1 (en) * 1999-09-30 2002-05-21 Ricoh Company, Ltd. Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery toner
US6501913B2 (en) 2000-08-31 2002-12-31 Ricoh Company, Ltd. Container, its support structure, and image formation apparatus
US6505022B2 (en) 2000-03-17 2003-01-07 Ricoh Co., Ltd. Image forming apparatus having protective layer on the surface of image bearing member to avoid adhesion of film of additives to image bearing member
US6507720B2 (en) 2000-07-21 2003-01-14 Ricoh Company, Ltd. Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers therefor
US6522855B1 (en) 1999-05-06 2003-02-18 Ricoh Company, Ltd. Image forming apparatus and developing apparatus preventing uneven image density
US6526246B2 (en) 2000-07-31 2003-02-25 Ricoh Company, Ltd. Powder replenishing device, powder conveying device, developing apparatus using the same powder replenishing device or powder conveying device, and image forming apparatus using the same powder replenishing device or powder conveying device

Family Cites Families (207)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599360Y2 (ja) 1977-12-19 1984-03-23 三菱電機株式会社 回転子計測用リ−ド線の支持装置
DK143246C (da) 1978-03-28 1981-11-30 Radiometer As Elektrodeanordning til transcutan p(co2)-maaling
JPS603858Y2 (ja) 1978-05-17 1985-02-02 岡部株式会社 鉄筋の継手
EP0006415A1 (de) 1978-06-29 1980-01-09 Osteo Ag Vorrichtung zum Einbringen von Knochenzement
JPS5515162A (en) 1978-07-19 1980-02-02 Seiko Instr & Electronics Ltd Electro-optical display device
JPS5915057Y2 (ja) 1978-10-31 1984-05-04 株式会社東芝 伝送線路形平衡不平衡変換トランス
US4274455A (en) 1979-04-13 1981-06-23 Tbs, Inc. Toner loading device
JPS603856Y2 (ja) 1979-05-19 1985-02-02 高砂熱学工業株式会社 建物の屋上スラブの構造
JPS603658Y2 (ja) 1979-08-08 1985-02-01 富士電機株式会社 ヒ−トパイプ付回転電機
JPS5694291A (en) 1979-12-28 1981-07-30 Rhythm Watch Co Ltd Alarm announcing circuit of watch
JPS5699364A (en) 1980-01-11 1981-08-10 Olympus Optical Co Ltd Magnet roll developing device
JPS5757451Y2 (de) 1980-02-29 1982-12-09
JPS5927558Y2 (ja) 1980-07-02 1984-08-09 安太郎 清水 緩衝装置
US4499849A (en) 1981-04-06 1985-02-19 Ricoh Company, Ltd. Apparatus for cleaning a recording medium
US4547059A (en) 1981-10-28 1985-10-15 Ricoh Company, Ltd. Image-transfer-type electrostatic recording apparatus
JPS58123444A (ja) 1982-01-19 1983-07-22 Hitachi Electronics Eng Co Ltd パタン欠陥検査装置
JPS58123444U (ja) 1982-02-13 1983-08-22 株式会社リコー 粉体の凝集防止装置
JPS58165374A (ja) 1982-03-26 1983-09-30 Hitachi Ltd 複合トランジスタ
JPS58182947U (ja) 1982-05-31 1983-12-06 富士通株式会社 トナ−供給装置
US4615364A (en) 1982-06-23 1986-10-07 Konishiroku Photo Industry Co., Ltd. Developer incoming device in electrostatic reproducing apparatus
JPS5938459Y2 (ja) 1982-08-02 1984-10-26 豊和工業株式会社 績紡機のニユ−マフル−ト用コネクタ−
JPS5927558A (ja) 1982-08-03 1984-02-14 Toshiba Corp 半導体装置用リ−ドフレ−ム
DE3329714A1 (de) 1982-08-17 1984-02-23 Canon K.K., Tokyo Arbeitseinheit und damit ausgestattetes mehrfarben-abbildungsgeraet
DE3232369C1 (de) 1982-08-31 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Fixiereinrchtung zum Fixieren von Tonerbildern in einer mit Fixiermitteldampf angereicherten Atmosphaere
US4740808A (en) 1983-01-08 1988-04-26 Canon Kabushiki Kaisha Developer container and a developing apparatus usable with the same
US4571070A (en) 1983-03-31 1986-02-18 Ricoh Company, Ltd. Cleaning device for photoconductive element of electrophotographic copier or the like
JPS601638A (ja) 1983-06-18 1985-01-07 Sony Corp 信号記録装置
DE3434563A1 (de) 1983-09-22 1985-04-11 Ricoh Co., Ltd., Tokio/Tokyo Entwicklungseinrichtung
JPS6082651U (ja) 1983-11-14 1985-06-07 富士ゼロックス株式会社 トナ−補給装置
JPS60203421A (ja) 1984-03-29 1985-10-15 Kyoraku Co Ltd 可撓性壁面を有する容器の製造方法
JPS60232578A (ja) 1984-05-02 1985-11-19 Canon Inc 粉粒体補給用容器
JPH0659572B2 (ja) 1984-06-02 1994-08-10 株式会社井上ジャパックス研究所 ワイヤカット放電加工装置
JPS6116708U (ja) 1984-07-02 1986-01-31 九州日立マクセル株式会社 ヘツドクリ−ナ
JPS61158547A (ja) 1984-12-28 1986-07-18 ロンシール工業株式会社 防水シ−トの施工方法
JPS61156176A (ja) * 1984-12-28 1986-07-15 Toshiba Corp 現像剤補給装置
JPS61156176U (de) 1985-03-19 1986-09-27
DE3633593A1 (de) 1986-10-02 1988-04-07 Siemens Ag Vorrichtung zum verschmutzungsfreien wechseln eines tonerbehaelters in einer tonerfoerdereinrichtung eines nichtmechanischen druck- oder kopiergeraetes
DE3633599A1 (de) 1986-10-02 1988-04-07 Siemens Ag Vorrichtung zum einfuellen von toner aus einem transportbehaelter in einen tonervorratsbehaelter
JPH049082Y2 (de) 1987-02-23 1992-03-06
JPS63271378A (ja) 1987-04-30 1988-11-09 Toshiba Corp 複写機のトナ−補給装置
JPS6417550U (de) 1987-07-22 1989-01-27
JPH0820805B2 (ja) 1987-08-24 1996-03-04 新電元工業株式会社 電子写真装置の現像装置
JPS6452181U (de) 1987-09-28 1989-03-30
JPH01211786A (ja) 1988-02-19 1989-08-24 Minolta Camera Co Ltd 複写機
JPH0519624Y2 (de) 1988-04-06 1993-05-24
JPH0546022Y2 (de) 1988-06-27 1993-12-01
US5121165A (en) * 1988-10-28 1992-06-09 Mita Industrial Co., Ltd. Developer unit and a toner hopper for an image forming device
JPH02134554U (de) 1989-04-12 1990-11-08
JPH0720702Y2 (ja) 1989-08-11 1995-05-15 凸版印刷株式会社 ディスプレイ装置
JPH03208066A (ja) 1990-01-09 1991-09-11 Canon Inc トナー補給装置
JPH03221986A (ja) 1990-01-29 1991-09-30 Ricoh Co Ltd 電子写真装置
JPH03245172A (ja) * 1990-02-19 1991-10-31 Nippon Kentek Kaisha Ltd トナー補給容器及びトナー補給容器を固定する装置
JPH03241372A (ja) 1990-02-20 1991-10-28 Ricoh Co Ltd 電子写真装置の現像器
JPH03269461A (ja) 1990-03-19 1991-12-02 Konica Corp 粉体補給装置
JPH03267965A (ja) 1990-03-19 1991-11-28 Konica Corp 現像剤補給装置
JPH0424758U (de) 1990-03-28 1992-02-27
JPH049082A (ja) 1990-04-26 1992-01-13 Mita Ind Co Ltd トナー補給装置
JPH0487901A (ja) 1990-07-18 1992-03-19 Canon Inc 粉体充填方法
JPH04134471A (ja) 1990-09-27 1992-05-08 Minolta Camera Co Ltd 現像剤収容容器
JPH04143781A (ja) 1990-10-04 1992-05-18 Canon Inc 複写機のトナー補給装置
US5074344A (en) 1990-10-22 1991-12-24 Eastman Kodak Company Toner container and latchable cover
JPH0720242Y2 (ja) 1990-12-13 1995-05-15 鹿島建設株式会社 鉄骨架構における柱・梁接合部構造
JPH0744005Y2 (ja) 1991-06-07 1995-10-09 太陽誘電株式会社 積層セラミックインダクタンス素子
JPH04134471U (ja) 1991-06-07 1992-12-15 小野田セメント株式会社 異物除去装置
JPH05232810A (ja) 1992-02-19 1993-09-10 Ricoh Co Ltd トナー容器
US5663788A (en) 1992-04-02 1997-09-02 Ricoh Company, Ltd. Efficiently removable developing toner in an electrostatic image forming apparatus
JPH06110329A (ja) 1992-04-11 1994-04-22 Ricoh Co Ltd 画像形成装置
JPH05323838A (ja) 1992-05-25 1993-12-07 Ricoh Co Ltd 廃トナー回収装置
KR0127279B1 (ko) 1992-07-24 1997-12-29 사또 후미오 전자사진장치용 용기 및 현상장치
JP3313190B2 (ja) 1992-09-28 2002-08-12 株式会社リコー 画像形成装置
JP3357958B2 (ja) 1992-12-08 2002-12-16 日本電気エンジニアリング株式会社 データ処理装置
JPH06175490A (ja) 1992-12-08 1994-06-24 Ricoh Co Ltd 画像形成装置
JPH06191049A (ja) 1992-12-25 1994-07-12 Canon Inc インクタンク、インクジェットカートリッジおよびインクジェット記録装置とインクタンクへのインク注入装置ならびにその注入方法
JPH06208301A (ja) 1993-01-08 1994-07-26 Konica Corp トナーカートリッジ
JPH06214459A (ja) 1993-01-19 1994-08-05 Ricoh Co Ltd トナー補給容器
JPH06222669A (ja) 1993-01-26 1994-08-12 Ricoh Co Ltd 画像形成装置
JPH06250520A (ja) 1993-02-23 1994-09-09 Ricoh Co Ltd 画像形成装置
JP3368628B2 (ja) * 1993-08-31 2003-01-20 双葉電子工業株式会社 ディスプレイ一体型タブレット
JPH07230241A (ja) 1993-12-22 1995-08-29 Canon Inc 画像形成装置
US5570170A (en) 1993-12-27 1996-10-29 Moore Business Forms, Inc. Electrostatic printing apparatus with a hopper and applicator roller with method of applying toner to and declumping the applicator roller
JP3581720B2 (ja) 1994-01-26 2004-10-27 株式会社リコー 現像装置
IT1268013B1 (it) 1994-02-07 1997-02-20 Olivetti Canon Ind Spa Unita' di sviluppo per elettrofotocopiatrici
JPH07261529A (ja) 1994-03-18 1995-10-13 Katsuragawa Electric Co Ltd トナー補給装置
JPH07261531A (ja) 1994-03-19 1995-10-13 Kao Corp トナーカートリッジ
US5461466A (en) 1994-05-02 1995-10-24 Hewlett-Packard Company Dripless seal for a liquid toner cartridge
US5640644A (en) * 1994-06-07 1997-06-17 Konica Corporation Image forming apparatus having toner replenishment device
DE4420315A1 (de) 1994-06-10 1995-12-14 Continental Ag Fahrzeugluftreifen mit sichtbar asymmetrischer Lauffläche
TW342105U (en) 1994-07-15 1998-10-01 Ricoh Co Ltd Toner cartridge for a developing device included in an image forming apparatus
IT235163Y1 (it) 1994-10-10 2000-03-31 Ideal Standard Spa Gruppo di tenuta per elementi maschio di stampi per la colatura di apparecchiature igienico-sanitarie
US5595223A (en) 1994-10-21 1997-01-21 Mitsubishi Pencil Corporation Of America Ink refilling assembly
DE69413406T2 (de) 1994-11-04 1999-05-12 Agfa-Gevaert N.V., Mortsel Tonerpulverflasche
JP2685002B2 (ja) * 1994-11-11 1997-12-03 日本電気株式会社 電子写真装置のトナー補給機構
JPH08171331A (ja) 1994-12-16 1996-07-02 Canon Inc 画像形成装置、プロセスカートリッジ、現像装置及び現像剤補給容器
JPH08171281A (ja) 1994-12-16 1996-07-02 Canon Inc 画像形成装置、プロセスカートリッジ、現像装置及び現像剤補給容器
JP3349286B2 (ja) 1995-02-03 2002-11-20 株式会社リコー 現像装置
JP2806848B2 (ja) 1995-02-22 1998-09-30 日本電気データ機器株式会社 トナー補給機構
US5592980A (en) 1995-03-24 1997-01-14 Eastman Kodak Company Toner container
CA2146102C (en) 1995-03-31 2000-07-25 Hermann Ophardt Bag fluid dispenser
JP3784454B2 (ja) 1995-04-07 2006-06-14 株式会社リコー 充填トナー補給容器及びその製造方法
JP3483087B2 (ja) 1995-04-14 2004-01-06 株式会社リコー 画像形成システム
JP3466769B2 (ja) * 1995-04-17 2003-11-17 キヤノン株式会社 画像形成装置、プロセスカートリッジ及び現像装置
JPH08292836A (ja) 1995-04-20 1996-11-05 Fujitsu General Ltd 光ポインタ
JPH08297397A (ja) 1995-04-25 1996-11-12 Mita Ind Co Ltd 粉粒体補給装置
JPH08314272A (ja) 1995-05-19 1996-11-29 Canon Inc 画像形成装置、プロセスカートリッジ、現像装置及び現像剤補給容器
JPH096108A (ja) 1995-06-15 1997-01-10 Canon Inc 画像形成装置のトナー補給装置
JPH0910616A (ja) 1995-06-30 1997-01-14 Aiwa Co Ltd ゴミ処理装置
JP3437332B2 (ja) 1995-07-10 2003-08-18 キヤノン株式会社 粉体供給用容器と該粉体供給用容器の製造方法及び粉体供給方法
JPH0930500A (ja) 1995-07-17 1997-02-04 Japan Steel Works Ltd:The 無重力落下シミュレータ装置
JPH09106156A (ja) 1995-10-09 1997-04-22 Canon Inc 現像剤容器、袋状シート及び現像剤充填装置
JP3471992B2 (ja) 1995-10-26 2003-12-02 キヤノン株式会社 トナー補給容器及び画像形成装置
JP3403594B2 (ja) 1995-11-15 2003-05-06 株式会社リコー 画像形成装置
JPH09166912A (ja) 1995-12-18 1997-06-24 Fuji Xerox Co Ltd 画像形成装置および現像剤容器
US5576816A (en) 1996-01-11 1996-11-19 Xerox Corporation Toner cartridge internal plug
JP3525019B2 (ja) 1996-02-19 2004-05-10 株式会社リコー 粉体ポンプ付き画像形成装置
JPH09292773A (ja) 1996-04-25 1997-11-11 Ricoh Co Ltd トナー移送装置
JPH09305080A (ja) 1996-05-16 1997-11-28 Mitsubishi Electric Corp 廃トナー回収容器及び廃トナー回収装置
JPH1031027A (ja) 1996-07-15 1998-02-03 Ricoh Co Ltd 回転速度検知装置
JP3572500B2 (ja) 1996-08-21 2004-10-06 コニカミノルタホールディングス株式会社 現像剤補給装置及び現像剤カートリッジ
JPH1063087A (ja) 1996-08-22 1998-03-06 Tec Corp 現像装置
JP3739061B2 (ja) 1996-09-19 2006-01-25 株式会社リコー トナー収納容器および画像形成装置
US5848326A (en) 1996-10-18 1998-12-08 Ricoh Company, Ltd. Toner conveying method and device for an image forming apparatus
JPH10123814A (ja) * 1996-10-24 1998-05-15 Nec Niigata Ltd トナー補給方式
JP3570701B2 (ja) 1996-11-11 2004-09-29 株式会社リコー 画像形成装置
JP3537293B2 (ja) 1996-11-11 2004-06-14 株式会社リコー 電子写真装置および感光体ユニット
JPH10198110A (ja) 1996-11-18 1998-07-31 Ricoh Co Ltd カラー画像形成方法
DE19652860C2 (de) 1996-12-18 2002-03-21 Oce Printing Systems Gmbh Vorrichtung zum Fördern von Tonermaterial aus einem Vorratsbehälter
US5875378A (en) 1996-12-20 1999-02-23 Lexmark International, Inc. Toner cartridge with hopper exit agitator
JP3535721B2 (ja) 1997-01-10 2004-06-07 株式会社リコー トナー補給装置
JP3750703B2 (ja) 1997-02-10 2006-03-01 日本紙パック株式会社 液用可撓容器
US5875380A (en) 1997-02-18 1999-02-23 Ricoh Company, Ltd. Image forming apparatus eliminating influence of fluctuation in speed of a conveying belt to correction of offset in color registration
JP3544097B2 (ja) 1997-04-17 2004-07-21 株式会社リコー 画像形成装置
US5950055A (en) 1997-04-18 1999-09-07 Ricoh Company, Ltd. Powder pump and image forming apparatus having the powder pump and method therefor
JPH10319694A (ja) 1997-05-16 1998-12-04 Ricoh Co Ltd 画像形成装置
US6249305B1 (en) 1997-05-16 2001-06-19 Konica Corporation Color image forming apparatus
US6112046A (en) 1997-06-20 2000-08-29 Ricoh Company, Ltd. Image forming apparatus having recycling of residual toner
JPH1184873A (ja) 1997-07-10 1999-03-30 Ricoh Co Ltd スクリューポンプ及び該スクリューポンプを用いたトナー移送装置
KR100243233B1 (ko) 1997-07-31 2000-02-01 윤종용 화상형성장치용토너카트리지
CA2300202A1 (en) * 1997-08-19 1999-02-25 Itsac N.V. Toner cartridge and opening and closing mechanism for pass-through of same
JP3373143B2 (ja) 1997-08-19 2003-02-04 株式会社昭和丸筒 トナーカートリッジ
JP3534165B2 (ja) 1998-04-14 2004-06-07 株式会社リコー トナー供給装置及びそれを有する画像形成装置
US5987298A (en) 1998-02-02 1999-11-16 Ricoh Company, Ltd. Image forming apparatus including a toner recycling mechanism
JP2917140B1 (ja) * 1998-02-23 1999-07-12 株式会社広瀬 床土又は瀘材の製造方法
JP3592069B2 (ja) 1998-02-24 2004-11-24 株式会社リコー 画像形成装置
JP3790036B2 (ja) 1998-03-20 2006-06-28 株式会社リコー 画像形成装置
JP4084457B2 (ja) 1998-03-31 2008-04-30 株式会社リコー 剤収納容器および画像形成装置
JP3981493B2 (ja) 1998-11-30 2007-09-26 株式会社リコー 画像形成装置
JP3450757B2 (ja) 1998-09-22 2003-09-29 キヤノン株式会社 トナー補給容器
DE19844970C2 (de) * 1998-09-30 2001-02-22 Siemens Ag Schaltungsanordnung zum Mischen eines Eingangssignals und eines Oszillatorsignals miteinander
US5970292A (en) 1998-10-14 1999-10-19 Xerox Corporation Securing feature for toner container shutter
JP2000194182A (ja) * 1998-10-19 2000-07-14 Ricoh Co Ltd トナー収納容器および該トナー収納容器を用いる画像形成装置
JP3391718B2 (ja) 1998-10-27 2003-03-31 花王株式会社 袋
JP3636905B2 (ja) 1998-11-13 2005-04-06 株式会社リコー トナー供給装置及びそれに用いるトナー補給容器
TWI227815B (en) * 1998-12-22 2005-02-11 Ricoh Kk Toner container and image forming method and apparatus using the same
JP4359483B2 (ja) 1998-12-22 2009-11-04 株式会社リコー 電子写真画像形成装置
JP3523129B2 (ja) 1998-12-22 2004-04-26 株式会社リコー トナー収納容器
JP3711777B2 (ja) 1999-02-16 2005-11-02 コニカミノルタホールディングス株式会社 粉体収納容器
DE19908961A1 (de) * 1999-03-02 2000-09-07 Valeo Beleuchtung Deutschland Leuchte, insbesondere für Kraftfahrzeuge
JP3993946B2 (ja) 1999-03-15 2007-10-17 株式会社リコー トナー収納容器
US6193113B1 (en) 1999-04-21 2001-02-27 Douglas J. Hidding Dispensing system with fluted probe and valved closure
US6608984B1 (en) 1999-04-23 2003-08-19 Ricoh Company, Ltd. Image forming method and apparatus using developer carrier pressed into engagement with image carrier
US6386392B1 (en) 1999-11-02 2002-05-14 The Procter & Gamble Company Reservoirs for use with cleaning devices
US6269234B1 (en) 1999-09-29 2001-07-31 Xerox Corporation Locking member for refillable print cartridge/toner bottle strategy
JP2001166553A (ja) 1999-12-13 2001-06-22 Ricoh Co Ltd カラー画像形成装置
JP4048011B2 (ja) 1999-12-16 2008-02-13 株式会社リコー 画像形成装置
US6370349B2 (en) * 2000-01-17 2002-04-09 Konica Corporation Toner storing container and toner replenishing device therewith
JP4157681B2 (ja) 2000-02-14 2008-10-01 株式会社リコー トナー収納容器
CN1900837B (zh) 2000-02-17 2012-10-03 株式会社理光 墨粉收纳容器、补给墨粉的方法及墨粉补给装置
CA2337087C (en) 2000-03-08 2006-06-06 Canon Kabushiki Kaisha Magnetic toner, process for production thereof, and image forming method, apparatus and process cartridge using the toner
JP4167807B2 (ja) 2000-03-10 2008-10-22 株式会社リコー 画像形成装置およびトナー収納容器
US7122286B2 (en) 2000-04-05 2006-10-17 Ricoh Company, Ltd. Toner for development of electrostatic latent images, method of forming images, image formation apparatus, toner container containing the toner therein, and image formation apparatus equipped with the toner container
JP4017320B2 (ja) 2000-07-04 2007-12-05 株式会社リコー 粉体収納容器および画像形成装置
JP2002072645A (ja) 2000-08-31 2002-03-12 Ricoh Co Ltd 粉体補給装置、現像装置及び画像形成装置
US6564029B2 (en) * 2000-09-01 2003-05-13 Canon Kabushiki Kaisha Cartridge having developer supply opening and image forming apparatus usable therewith
US6671484B2 (en) 2000-09-05 2003-12-30 Ricoh Company, Ltd. Image forming apparatus having developing device with magnet roller with particular magnetic flux density
US6597884B2 (en) 2000-09-08 2003-07-22 Ricoh Company, Ltd. Image forming apparatus including electrostatic conveyance of charged toner
JP3958511B2 (ja) 2000-09-28 2007-08-15 株式会社リコー トナー補給装置および画像形成装置
US6505014B2 (en) 2000-09-29 2003-01-07 Ricoh Company, Ltd. Image forming apparatus and an image forming process unit
US6363232B1 (en) 2000-10-10 2002-03-26 Xerox Corporation Developer material cartridge having a robust multiple function seal
US6681096B2 (en) 2000-10-26 2004-01-20 Ricoh Company, Ltd. Image formation apparatus, printer, copying machine, and facsimile device
JP2002127492A (ja) 2000-10-27 2002-05-08 Ricoh Co Ltd 光書き込みユニットおよび光書き込みユニットの検査装置
JP3868785B2 (ja) 2000-11-10 2007-01-17 株式会社リコー 積層型電子写真感光体、画像形成方法、画像形成装置及び画像形成装置用プロセスカートリッジ
US6542707B2 (en) 2000-11-13 2003-04-01 Ricoh Co., Ltd. Method and apparatus for image forming capable of effectively transferring various kinds of powder
US6332065B1 (en) 2000-11-17 2001-12-18 Xerox Corporation CRU/toner bottle connector assembly
US6653037B2 (en) 2000-11-20 2003-11-25 Ricoh Company, Ltd. Toner for developing latent electrostatic images, and image forming method and device
JP3933385B2 (ja) 2000-11-28 2007-06-20 株式会社リコー 静電潜像現像用トナー及び画像形成方法
JP4143266B2 (ja) 2001-01-16 2008-09-03 株式会社リコー 現像装置、画像形成装置及び画像形成プロセスユニット
US6721516B2 (en) 2001-01-19 2004-04-13 Ricoh Company, Ltd. Image forming apparatus
US6640073B2 (en) 2001-01-23 2003-10-28 Ricoh Company, Ltd. Liquid image formation apparatus and liquid developing device
US6669189B2 (en) 2001-01-26 2003-12-30 Ricoh Company, Ltd. Image forming apparatus
US6665508B2 (en) 2001-01-31 2003-12-16 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US6597883B2 (en) 2001-02-13 2003-07-22 Ricoh Company, Ltd. Powder pump capable of effectively conveying powder and image forming apparatus using powder pump
JP2002318487A (ja) 2001-02-19 2002-10-31 Ricoh Co Ltd 現像方法と画像形成ユニット及び画像形成装置
JP2002251033A (ja) 2001-02-22 2002-09-06 Ricoh Co Ltd カラートナー、その製造方法及び画像形成方法
US6792234B2 (en) 2001-02-28 2004-09-14 Ricoh Company, Ltd. Developing device having a developer carrier including main and auxiliary magnetic poles and image forming apparatus using the same
US6858365B2 (en) 2001-03-23 2005-02-22 Ricoh Company, Ltd. Toner for developing electrostatic latent image, developing method and developing apparatus
US6987944B2 (en) * 2001-03-28 2006-01-17 Ricoh Company, Ltd. Cleaning device and image forming apparatus using the cleaning device
EP1253480B1 (de) 2001-04-27 2011-01-05 Ricoh Company, Ltd. Bilderzeugungsvorrichtung mit verbesserter Tonerzufuhr
JP4907782B2 (ja) 2001-05-18 2012-04-04 株式会社リコー クリーニング装置及びそのクリーニング装置を具備する画像形成装置
JP3570714B2 (ja) 2001-05-24 2004-09-29 株式会社リコー 現像剤収納容器及び画像形成装置
JP4083505B2 (ja) 2001-08-27 2008-04-30 株式会社リコー 画像形成装置，プログラム更新方法および記録媒体
JP4212849B2 (ja) 2001-08-31 2009-01-21 株式会社リコー 画像形成装置
JP2003122208A (ja) 2001-10-12 2003-04-25 Ricoh Co Ltd 電子写真方式の画像形成装置
JP4095875B2 (ja) * 2001-10-30 2008-06-04 株式会社リコー 現像剤収納容器及び画像形成装置
JP2003241570A (ja) 2001-12-11 2003-08-29 Ricoh Co Ltd 画像形成装置
US7010246B2 (en) * 2002-06-10 2006-03-07 Ricoh Company, Ltd. Image forming apparatus, drum unit, image forming module, and method of insertion and removal of a damper into and from an image carrier drum
US6712516B1 (en) * 2002-06-17 2004-03-30 Melbourne F. Giberson Bearing spring plate pedestal
US6793331B2 (en) 2002-08-08 2004-09-21 Hewlett-Packard Development Company, L.P. Imaging cartridge having a level indicator

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0720702A (ja) 1993-06-30 1995-01-24 Ricoh Co Ltd トナー補給装置
US5592267A (en) 1994-01-19 1997-01-07 Ricoh Company, Ltd. Image forming apparatus using fresh toner and used toner
US5655180A (en) * 1994-03-19 1997-08-05 Kao Corporation Toner cartridge with a rotary element which is attachable to and detachable from a developing apparatus
US5652944A (en) * 1994-07-29 1997-07-29 Fujitsu Limited Serial electrophotographic apparatus with first and second supply chamber with stirring arrangements
JPH09197818A (ja) 1996-01-11 1997-07-31 Xerox Corp トナーカートリッジ
US6249304B1 (en) 1996-10-08 2001-06-19 Ricoh Company, Ltd. Image forming apparatus and image forming method for forming color images by gray-level image forming technique
US5960238A (en) * 1997-04-25 1999-09-28 Nec Corporation Method of supplying toner for process cartridge and process cartridge for image forming apparatus
US6032010A (en) * 1998-02-27 2000-02-29 Samsung Electronics Co., Ltd. Ink supply apparatus for wet electrophotographic printer
US6163669A (en) 1998-05-29 2000-12-19 Ricoh Company, Ltd. Image forming apparatus
US6201941B1 (en) 1998-06-25 2001-03-13 Ricoh Company, Ltd. Developer container for an image forming apparatus and method of conveying a developer
US6122468A (en) 1998-10-09 2000-09-19 Ricoh Company, Ltd. Method and apparatus for forming toner images
US6295437B1 (en) 1998-12-28 2001-09-25 Ricoh Company, Ltd. Apparatus and method for forming an image using a developing device capable of obtaining a high quality image
US6198895B1 (en) 1999-02-08 2001-03-06 Ricoh Company, Ltd. Developing device with improved developer circulation and toner density control
JP2000267415A (ja) 1999-03-15 2000-09-29 Ricoh Co Ltd トナー収納容器
US6522855B1 (en) 1999-05-06 2003-02-18 Ricoh Company, Ltd. Image forming apparatus and developing apparatus preventing uneven image density
US6337957B1 (en) 1999-06-21 2002-01-08 Ricoh Company, Ltd. Image forming apparatus and developing device with improved self toner density control
US6393241B1 (en) * 1999-09-30 2002-05-21 Ricoh Company, Ltd. Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery toner
US6505022B2 (en) 2000-03-17 2003-01-07 Ricoh Co., Ltd. Image forming apparatus having protective layer on the surface of image bearing member to avoid adhesion of film of additives to image bearing member
EP1154333A2 (de) 2000-05-08 2001-11-14 Ricoh Company, Ltd. Bilderzeugungsgerät mit leicht auswechselbarem Tonerbehälter und eine Tonerzuführpumpe
US6507720B2 (en) 2000-07-21 2003-01-14 Ricoh Company, Ltd. Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers therefor
US6526246B2 (en) 2000-07-31 2003-02-25 Ricoh Company, Ltd. Powder replenishing device, powder conveying device, developing apparatus using the same powder replenishing device or powder conveying device, and image forming apparatus using the same powder replenishing device or powder conveying device
US6501913B2 (en) 2000-08-31 2002-12-31 Ricoh Company, Ltd. Container, its support structure, and image formation apparatus

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, JP 08-137229, May 31, 1996.
Patent Abstracts of Japan, JP 10-123814, May 15, 1998.
Patent Abstracts of Japan, JP 61-156176, Jul. 15, 1986.

Cited By (117)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7289748B2 (en) 2000-02-17 2007-10-30 Ricoh Company, Ltd. Apparatus and method for replenishing a developing device with toner while suppressing toner remaining
US7218880B2 (en) 2000-02-17 2007-05-15 Ricoh Company, Ltd. Apparatus and method for replenishing a developing device with toner while suppressing toner remaining
US7542697B2 (en) 2000-09-28 2009-06-02 Ricoh Company, Ltd Toner supply unit and image forming apparatus
US7356290B2 (en) 2000-09-28 2008-04-08 Ricoh Company, Ltd. Toner supply unit and image forming apparatus
US20040091287A1 (en) * 2000-09-28 2004-05-13 Junichi Matsumoto Toner supply unit and image forming apparatus
US7209689B2 (en) 2000-09-28 2007-04-24 Ricoh Company, Ltd. Toner supply unit and image forming apparatus
US7130558B2 (en) 2000-09-28 2006-10-31 Ricoh Company, Ltd Toner supply unit and image forming apparatus
US7209687B2 (en) 2001-01-31 2007-04-24 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US7162188B2 (en) 2001-01-31 2007-01-09 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US7412191B2 (en) 2001-01-31 2008-08-12 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US7110704B2 (en) 2001-01-31 2006-09-19 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US7130567B2 (en) 2001-01-31 2006-10-31 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US7158742B2 (en) 2001-01-31 2007-01-02 Ricoh Company, Ltd. Toner container and image forming apparatus using the same
US20090080945A1 (en) * 2001-10-30 2009-03-26 Satoshi Muramatsu Developer container for an image forming apparatus
US7778577B2 (en) * 2001-10-30 2010-08-17 Ricoh Company, Ltd. Developer container for an image forming apparatus
US20080310884A1 (en) * 2002-09-20 2008-12-18 Junichi Matsumoto Body member of a powder container
US20090324298A1 (en) * 2002-09-20 2009-12-31 Goro Katsuyama Image forming apparatus, powder supplying unit, toner container, powder container, and method of recycling the powder container
US7917055B2 (en) 2002-09-20 2011-03-29 Ricoh Company, Limited Toner container including a toner draining unit and a shutter, and corresponding image forming apparatus
US7043182B2 (en) 2002-09-20 2006-05-09 Ricoh Company, Ltd. Developer regulating member, developing device, electrophotographic image forming process cartridge, and image forming apparatus including the developer regulating member
US7796914B2 (en) * 2002-09-20 2010-09-14 Ricoh Company, Ltd. Powder container having a cylindrical shutter
US20040114971A1 (en) * 2002-09-20 2004-06-17 Kiyotaka Sakai Developer regulating member, developing device, electrophotographic image forming process cartridge, and image forming apparatus including the developer regulating member
US7398038B2 (en) 2002-09-24 2008-07-08 Ricoh Company, Ltd. Image forming apparatus using a toner container and a process cartridge
US7010249B2 (en) 2002-12-13 2006-03-07 Ricoh Company, Ltd. Toner agitating device and toner conveying device for an image forming apparatus
US20040165913A1 (en) * 2002-12-13 2004-08-26 Yoshio Hattori Toner agitating device and toner conveying device for an image forming apparatus
US7519317B2 (en) 2003-02-28 2009-04-14 Ricoh Company, Ltd. Developer container, developer supplying device, and image forming apparatus
US7697870B2 (en) 2003-02-28 2010-04-13 Ricoh Company, Ltd. Developer container, developer supplying device, and image forming apparatus
US7835673B2 (en) 2003-02-28 2010-11-16 Ricoh Company, Ltd. Developer container, developer supplying device, and image forming apparatus
US20070177905A1 (en) * 2003-02-28 2007-08-02 Hiroshi Hosokawa Developer container, developer supplying device, and image forming apparatus
US7480476B2 (en) 2003-02-28 2009-01-20 Ricoh Company, Ltd. Developer container, developer supplying device, and image forming apparatus
US8005406B2 (en) 2003-02-28 2011-08-23 Ricoh Company, Ltd. Developer container, developer supplying device, and image forming apparatus
US8195070B2 (en) 2003-02-28 2012-06-05 Ricoh Company, Ltd. Developer container, developer supplying device, and image forming apparatus
US20080003021A1 (en) * 2003-02-28 2008-01-03 Hiroshi Hosokawa Developer container, developer supplying device, and image forming apparatus
US20040223556A1 (en) * 2003-05-06 2004-11-11 Samsung Electronics Co., Ltd. Method and apparatus for transferring and receiving ultra wideband signals using differential phase shift keying scheme
US7590374B2 (en) * 2003-08-25 2009-09-15 Ricoh Company, Ltd. Conveyor device and image forming apparatus
US20080063435A1 (en) * 2003-08-25 2008-03-13 Nobuo Takami Conveyor device and image forming apparatus
US7734230B2 (en) 2003-08-25 2010-06-08 Ricoh Company, Ltd. Conveyor device and image forming apparatus
US20070170211A1 (en) * 2003-09-04 2007-07-26 Yoshio Hattori Container and toner replenishing device using the same
US20050111882A1 (en) * 2003-09-19 2005-05-26 Kazuhisa Sudo Image forming apparatus
US7212773B2 (en) 2003-09-19 2007-05-01 Ricoh Company, Ltd. Image forming apparatus
US7313349B2 (en) 2004-02-06 2007-12-25 Ricoh Company, Ltd. Toner container and image forming apparatus
US20070077100A1 (en) * 2004-02-06 2007-04-05 Masato Suzuki Toner bottle, process for producing the same, toner container, and toner cartridge, and, image forming apparatus and image forming process
US7466945B2 (en) 2004-03-05 2008-12-16 Ricoh Company, Ltd. Toner container, toner replenishing device, developing device, process cartridge and image forming apparatus
US20050196199A1 (en) * 2004-03-05 2005-09-08 Yoshio Hattori Toner container, toner replenishing device, developing device, process cartridge and image forming apparatus
US20050249518A1 (en) * 2004-05-06 2005-11-10 General Plastic Industrial Co., Ltd. Toner cartridge
US7031635B2 (en) * 2004-05-06 2006-04-18 General Plastic Industrial Co., Ltd. Toner cartridge
US7457570B2 (en) 2004-08-06 2008-11-25 Ricoh Company, Ltd. Image forming apparatus including a magnetic brush developing system using a two-component developer comprising toner and carrier
US20070212119A1 (en) * 2004-08-06 2007-09-13 Ricoh Company, Ltd. Toner Cartridge, Image Forming Apparatus, Method of Recycling Toner Cartridge
US8068770B2 (en) 2004-08-06 2011-11-29 Ricoh Company, Ltd. Toner cartridge, image forming apparatus, method of recycling toner cartridge
US20100296847A1 (en) * 2004-08-06 2010-11-25 Takeroh Kurenuma Toner cartridge, image forming apparatus, method of recycling toner cartridge
US7962069B2 (en) 2004-08-06 2011-06-14 Ricoh Company, Ltd. Toner container, image forming apparatus, method of recycling toner container
US20060029435A1 (en) * 2004-08-06 2006-02-09 Tadashi Kasai Image forming apparatus
US7840167B2 (en) 2004-08-16 2010-11-23 Ricoh Company, Ltd. Toner container including a gear which is at least partially exposed to an exterior
US7720416B2 (en) 2004-08-16 2010-05-18 Ricoh Company, Ltd. Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatus
US8396398B2 (en) 2004-08-16 2013-03-12 Ricoh Company, Ltd. Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatus
US7747202B2 (en) 2004-08-16 2010-06-29 Ricoh Company, Ltd. Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatus
US8121525B2 (en) 2004-08-16 2012-02-21 Ricoh Company, Ltd. Method and toner bottle for image forming apparatus capable of effectively supplying toner to image forming apparatus
US20070160394A1 (en) * 2005-04-27 2007-07-12 Nobuyuki Taguchi Toner container and image forming apparatus
US7702262B2 (en) 2005-04-27 2010-04-20 Ricoh Co., Ltd. Toner container including a container body with a gripper at the end thereof, and associated method
US20070147900A1 (en) * 2005-06-07 2007-06-28 Nobuyuki Taguchi Toner container and image forming apparatus
US8160461B2 (en) 2005-06-07 2012-04-17 Ricoh Co., Ltd. Toner container and image forming apparatus
US20110008075A1 (en) * 2005-06-07 2011-01-13 Nobuyuki Taguchi Toner container and image forming apparatus
US20070154243A1 (en) * 2005-06-07 2007-07-05 Nobuyuki Taguchi Toner container and image forming apparatus
US7826777B2 (en) 2005-06-07 2010-11-02 Ricoh Co., Ltd. Toner container and image forming apparatus having first and second biasing elements that bias the toner container
US7835675B2 (en) 2005-06-07 2010-11-16 Ricoh Co., Ltd. Toner container and image forming apparatus
USRE47086E1 (en) 2005-06-07 2018-10-16 Ricoh Company, Ltd. Toner container and image forming apparatus
US20080193161A1 (en) * 2006-02-14 2008-08-14 Hiroshi Sano Power Supplying Device and Image Forming Device
US7826778B2 (en) 2006-02-14 2010-11-02 Ricoh Company, Ltd. Powder supplying device and image forming device
US20070212117A1 (en) * 2006-03-10 2007-09-13 Fumihito Itoh Powder transport device and image forming system
US7869746B2 (en) 2006-03-10 2011-01-11 Ricoh Company, Ltd. Image forming device, powder supply device, and powder storage unit including a gas supplying unit
US7587152B2 (en) 2006-03-10 2009-09-08 Ricoh Company, Ltd. Powder transport device and image forming system
US20070212116A1 (en) * 2006-03-10 2007-09-13 Fumihito Itoh Image forming device, powder supply device, and powder storage unit
US7636537B2 (en) 2006-04-18 2009-12-22 Ricoh Company, Ltd. Powder supplying device and image forming device having a gas blowing part arranged to entirely cover a bottom surface of a powder container unit
US20070242983A1 (en) * 2006-04-18 2007-10-18 Hiroshi Sano Powder supplying device and image forming device
US7960084B2 (en) 2006-10-26 2011-06-14 Ricoh Company, Ltd. Method of preparing information recording medium
US20080102392A1 (en) * 2006-10-26 2008-05-01 Nobuyuki Koinuma Information recording medium and method of preparing same
US20080143098A1 (en) * 2006-11-07 2008-06-19 Joerg Zimmermann Magnetic fluid coupling assemblies and methods
US7891637B2 (en) 2006-11-07 2011-02-22 Angstrom Power Incorporated Magnetic fluid coupling assemblies and methods
US20110114862A1 (en) * 2006-11-07 2011-05-19 Angstrom Power Incorporated Magnetic fluid coupling assemblies and methods
US9263752B2 (en) 2006-11-07 2016-02-16 Intelligent Energy Limited Magnetic fluid coupling assemblies and methods
US20080124133A1 (en) * 2006-11-09 2008-05-29 Hideo Yoshizawa Toner container and image forming apparatus
US8050597B2 (en) 2006-11-09 2011-11-01 Ricoh Company, Limited Toner container having a gear portion and image forming apparatus
US20100189470A1 (en) * 2006-11-09 2010-07-29 Hideo Yoshizawa Toner container and image forming apparatus
US8244163B2 (en) 2006-11-09 2012-08-14 Ricoh Company, Limited Toner container and image forming apparatus
US20080152407A1 (en) * 2006-12-25 2008-06-26 Kazuhisa Sudo Image forming apparatus capable of forming glossy color image
US8023877B2 (en) 2006-12-25 2011-09-20 Ricoh Company Limited Image forming apparatus capable of forming glossy color image
US20080213003A1 (en) * 2007-01-25 2008-09-04 Hiroshi Sano Particle supply apparatus, imaging apparatus, and particle accommodating unit transporting method
US8000636B2 (en) 2007-01-25 2011-08-16 Ricoh Company, Ltd. Particle supply apparatus, imaging apparatus, and particle accommodating unit transporting method
US8023855B2 (en) 2007-11-26 2011-09-20 Ricoh Company Limited Development device, process cartridge, and image forming apparatus
US20090136257A1 (en) * 2007-11-26 2009-05-28 Yoshio Hattori Development device, process cartridge, and image forming apparatus
US9081327B2 (en) 2010-06-11 2015-07-14 Ricoh Company, Limited Apparatus and method for preventing an information storage device from falling from a removable device
US9989887B2 (en) 2010-06-11 2018-06-05 Ricoh Company, Ltd. Apparatus and method for preventing an information storage device from falling from a removable device
US9069287B2 (en) 2010-06-11 2015-06-30 Ricoh Company, Limited Apparatus and method for preventing an information storage device from falling from a removable device
US12416878B2 (en) 2010-06-11 2025-09-16 Ricoh Company, Limited Information storage system including a plurality of terminals
US9110402B2 (en) 2010-06-11 2015-08-18 Ricoh Company, Limited Apparatus and method for preventing an information storage device from falling from a removable device
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US11768448B2 (en) 2010-06-11 2023-09-26 Ricoh Company, Ltd. Information storage system including a plurality of terminals
US9256158B2 (en) 2010-06-11 2016-02-09 Ricoh Company, Limited Apparatus and method for preventing an information storage device from falling from a removable device
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US11429036B2 (en) 2010-06-11 2022-08-30 Ricoh Company, Ltd. Information storage system including a plurality of terminals
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US11275327B2 (en) 2010-06-11 2022-03-15 Ricoh Company, Ltd. Information storage system including a plurality of terminals
US20180253028A1 (en) 2010-06-11 2018-09-06 Yasufumi Takahashi Apparatus and method for preventing an information storage device from falling from a removable device
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US9857729B2 (en) * 2013-02-25 2018-01-02 Ricoh Company, Ltd. Nozzle insertion member, powder container, and image forming apparatus
US11543761B2 (en) 2013-02-25 2023-01-03 Ricoh Company, Ltd. Powder container including an opening and a shutter with a front end including a surface with lower friction

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US20040067077A1 (en) 2004-04-08
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US20050058472A1 (en) 2005-03-17
US7110704B2 (en) 2006-09-19
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US20070242982A1 (en) 2007-10-18
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US7162188B2 (en) 2007-01-09
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US7209687B2 (en) 2007-04-24
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